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Find the surface area of sphere where volume of sphere is 606.375 m3.1. 324.5 m22. 344.5 m23. 346.5 m24. 348.5 m2 |
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Answer» Correct Answer - Option 3 : 346.5 m2 Given: Volume of sphere = 606.375 m3. Formula used: Surface area of sphere = 4πr2 Volume of sphere = (4/3)π × r3 Calculation: Volume of sphere = (4/3)πr3 ⇒ (4/3)πr3 = 606.375 m3 ⇒ (4/3)(22/7) × r3 = 606.375 m3 ⇒ r3 = (606.375 × 7 × 3)/(22 × 4) ⇒ r3 = 144.703125 ⇒ r = 5.25 m Surface area of sphere = 4πr2 ⇒ Surface area of sphere = 4 × (22/7) × (5.25)2 ⇒ (4 × 22 × 5.25 × 5.25)/7 ⇒ (2425.5)/7 ⇒ 346.5 m2 ∴ The surface area of sphere is 346.5 m2. |
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